class.ilSoapClient.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
 
 
class ilSoapClient
{
        const DEFAULT_CONNECT_TIMEOUT = 10;
        const DEFAULT_RESPONSE_TIMEOUT = 5;
 
        private $log = null;
        
        private $client = null;
        
        private $uri;
        
        private $connect_timeout = 10;
        private $response_timeout = 10;
        
        private $stored_socket_timeout = null;
        
        
        public function __construct($a_uri = '')
        {
                global $ilSetting;
                
                $this->log = ilLoggerFactory::getLogger('wsrv');
 
                $this->uri = $a_uri;
 
                $this->use_wsdl = true;
                $timeout = $ilSetting->get('soap_connect_timeout',self::DEFAULT_CONNECT_TIMEOUT);
                if(!$timeout)
                {
                        $timeout = self::DEFAULT_CONNECT_TIMEOUT;
                }
                $this->connect_timeout = $timeout;
                
                $this->response_timeout = self::DEFAULT_RESPONSE_TIMEOUT;
        }
        
        public function getServer()
        {
                return $this->uri;
        }
        
        public function setTimeout($a_timeout)
        {
                $this->connect_timeout = $a_timeout;
        }
        
        public function getTimeout()
        {
                return $this->connect_timeout;
        }
        
        public function setResponseTimeout($a_timeout)
        {
                $this->response_timeout = $a_timeout;
        }
        
        public function getResponseTimeout()
        {
                return $this->response_timeout;
        }
        
        public function enableWSDL($a_stat)
        {
                $this->use_wsdl = $a_stat;
        }
        
        public function enabledWSDL()
        {
                return $this->use_wsdl;
        }
        
 
        public function init()
        {
                global $ilSetting;
                
                if(!strlen(trim($this->getServer())))
                {
                        if(strlen(trim($ilSetting->get('soap_wsdl_path',''))))
                        {
                                $this->uri = $ilSetting->get('soap_wsdl_path','');
                        }
                        else
                        {
                                $this->uri = ilUtil::_getHttpPath().'/webservice/soap/server.php?wsdl';
                        }
                }
                try {
                        
                        $this->log->debug('Using wsdl: ' . $this->getServer());
                        $this->log->debug('Using connection timeout: ' . $this->getTimeout());
                        $this->log->debug('Using response timeout: ' . $this->getResponseTimeout());
                        
                        $this->setSocketTimeout(true);
                        $this->client = new SoapClient(
                                $this->uri,
                                array(
                                        'exceptions' => true,
                                        'trace' => 1,
                                        'connection_timeout' => (int) $this->getTimeout()
                                )
                        );
                        return true;
                } 
                catch (SoapFault $ex) {
                        
                        $this->log->warning('Soap init failed with message: ' . $ex->getMessage());
                        $this->resetSocketTimeout();
                        return false;
                }
                finally {
                        $this->resetSocketTimeout();
                }
        }
        
        protected function setSocketTimeout($a_wsdl_mode)
        {
                $this->stored_socket_timeout = ini_get('default_socket_timeout');
                $this->log->debug('Default socket timeout is: ' . $this->stored_socket_timeout);
                
                if($a_wsdl_mode)
                {
                        $this->log->debug('WSDL mode, using socket timeout: ' . $this->getTimeout());
                        ini_set('default_socket_timeout', $this->getTimeout());
                }
                else
                {
                        $this->log->debug('Non WSDL mode, using socket timeout: ' . $this->getResponseTimeout());
                        ini_set('default_socket_timeout', $this->getResponseTimeout());
                }
                return true;
        }
        
        protected function resetSocketTimeout()
        {
                ini_set('default_socket_timeout', $this->stored_socket_timeout);
                $this->log->debug('Restoring default socket timeout to: ' . $this->stored_socket_timeout);
                return true;
        }
        
        public function call($a_operation, $a_params)
        {
                $this->log->debug('Calling webseervice: ' . $a_operations);
 
                $this->setSocketTimeout(false);
                try {
                        return $this->client->__call($a_operation, $a_params);
                } 
                catch(SoapFault $exception) {
                        $this->log->error('Calling webservice failed with message: ' . $exception->getMessage());
                        $this->log->debug($this->client->__getLastResponseHeaders());
                        $this->log->debug($this->client->__getLastResponse());
                        return false;
                }
                catch(Exception $exception)
                {
                        $this->log->error('Caught unknown exception with message: '. $exception->getMessage());
                        $this->log->debug($this->client->__getLastResponseHeaders());
                        $this->log->debug($this->client->__getLastResponse());
                }
                finally {
                        $this->resetSocketTimeout();
                }
        }
}
?>